/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hadoop.hive.metastore.txn;

import org.apache.hadoop.hive.metastore.api.Database;
import org.apache.hadoop.hive.metastore.api.HiveObjectType;
import org.apache.hadoop.hive.metastore.api.MetaException;
import org.apache.hadoop.hive.metastore.api.Partition;
import org.apache.hadoop.hive.metastore.api.ShowCompactRequest;
import org.apache.hadoop.hive.metastore.api.ShowCompactResponse;
import org.apache.hadoop.hive.metastore.api.Table;

import java.util.Iterator;

public class ThrowingTxnHandler extends CompactionTxnHandler {

  public static volatile boolean doThrow;

  @Override
  public void cleanupRecords(HiveObjectType type, Database db, Table table,
      Iterator<Partition> partitionIterator, boolean keepTxnToWriteIdMetaData) throws MetaException {
    if (doThrow) {
      throw new RuntimeException("during transactional cleanup");
    }
    super.cleanupRecords(type, db, table, partitionIterator, keepTxnToWriteIdMetaData);
  }

  @Override
  public void cleanupRecords(HiveObjectType type, Database db, Table table,
      Iterator<Partition> partitionIterator, long txnId) throws MetaException {
    if (doThrow) {
      throw new RuntimeException("during transactional cleanup");
    }
    super.cleanupRecords(type, db, table, partitionIterator, txnId);
  }
  
  @Override
  public ShowCompactResponse showCompact(ShowCompactRequest rqst) throws MetaException {
    if (doThrow) {
      throw new RuntimeException("during showCompact");
    }
    return super.showCompact(rqst);

  }

  @Override
  public long findMinOpenTxnIdForCleaner() throws MetaException {
    if (doThrow) {
      throw new RuntimeException("during findMinOpenTxnIdForCleaner");
    }
    return super.findMinOpenTxnIdForCleaner();
  }
}
